SECTION 07115

ELASTOMERIC SHEET WATERPROOFING

PART 1 GENERAL

WORK INCLUDED

[Adhesive applied] [Mechanically attached] [Loose laid] [Self-adhesive] elastomeric sheet membrane waterproofing.

[Counterflash membrane termination.]

[Protection board.]

WORK FURNISHED BUT INSTALLED UNDER OTHER SECTIONS

Furnish only [in-situ flashing devices] [special coated metal] to Section [_____ - __________] for counterflashing to work of this Section.

RELATED WORK

Section [_____ - __________:] Concrete substrate.

Section [_____ - __________:] [_____] cover.

Section [_____ - __________:] Grouting joints of precast concrete deck surfaces.

Section [_____ - __________:] Masonry joints prepared to receive flashings.

Section 07212 - Board Insulation: Rigid thermal insulation cover.

Section 07600 - Flashing and Sheet Metal: Metal [counterflashing] [__________] work.

Section [_____ - __________:] Drain flashing flanges.

REFERENCES

ANSI/ASTM D412 - Rubber Properties in Tension.

ASTM D624 - Rubber Property - Tear Resistance.

ASTM D822 - Practice for Operating Light-and-Water-Exposure Apparatus (Carbon-arc type) for Testing Paint, Varnish, Lacquer, and Related Products.

ASTM D1004 - Initial Tear Resistance of Plastic Film and Sheeting.

ASTM D2240 - Rubber Property - Durometer Hardness.

ASTM E96 - Water Vapor Transmission of Materials.

QUALITY ASSURANCE

Membrane Manufacturer: Company specializing in waterproofing sheet membranes with [three] [_____] years experience.

Applicator: Company specializing in application of specified waterproofing [with [_____] years [documented] experience.] [approved by manufacturer.]

MOCKUP

Provide mockup of installed membrane under provisions of Section [01400.] [01405.]

Mockup to represent conditions of finished work including internal and external corners, seam jointing, attachment method, sealing and counterflashing cover, control and expansion joints.

Provide testing of mockup under provisions of Section [01400] [01410] to ensure weathertightness.

SUBMITTALS

Submit shop drawings and product data under provisions of Section [01300.] [01340.]

[Submit shop drawings detailing special joint or termination conditions and conditions of interface with other materials.]

Submit product data for [surface conditioner,] flexible flashing, joint cover sheet, and joint and crack sealants, with temperature range for application of waterproofing membrane.

Submit manufacturer's installation instructions under provisions of Section [01400.] [01405.]

ENVIRONMENTAL REQUIREMENTS

Do not apply waterproofing during inclement weather or when air temperature is below [40] [_____] degrees F ([5] [____] degrees C).

WARRANTY

Provide [five] [_____] year [manufacturer's] warranty under provisions of Section [01700.] [01740.]

Warranty: Include coverage [of materials and installation] [and resultant damage] from failure of installation to resist penetration of moisture.

PART 2 PRODUCTS

ACCEPTABLE MANUFACTURERS - MEMBRANE

[____________________] System [____________________.]

[____________________] System [____________________.]

[____________________] System [____________________.]

Substitutions: Under provisions of Section [01600.] [01630.]

MEMBRANE MATERIALS

Membrane: [_____] inch ([_____] mm) thick [butyl,] [PVC,] [EPDM,] [CPE,] [neoprene,] [hypalon,] [_____,] [composite lamination of [_____] and [_____,]] [_____] inch ([_____] mm) wide roll[,][.] [conforming to the following criteria:]

Properties Test Results Tensile Strength ANSI/ASTM D412 [__________] Elongation ANSI/ASTM D412 [__________] Hardness - Shore A ASTM D2240 [__________]

Tear Strength	ASTM [D624]	[__________]

[D1004]

Water Absorption [__________] [__________] Moisture Vapor-perms ASTM E96 [__________] Exposure ASTM D822 [__________]

Seaming Materials: As recommended by membrane manufacturer.

Flexible Flashings: [_____] inch ([_____] mm) thick [butyl.] [neoprene.] [__________.]

Special Flashings: [_____] metal, coated with [_____;] [furnished to Section [_____ - __________] for [fabrication and] installation.] [__________.]

ADHESIVE MATERIALS

Surface Conditioner: [_____] type, compatible with membrane.

Adhesive: As recommended by membrane manufacturer.

Thinner and Cleaner: As recommended by adhesive manufacturer, compatible with sheet membrane.

ATTACHMENT MATERIALS

Battens: [___________________________________.]

Disc Washers and Screws: [___________________.]

Circular Membrane Discs: [___________________.]

ACCESSORIES

Sealants: [As recommended by membrane manufacturer.] [__________.]

[Protection Board: [_____] inch ([_____] mm) thick [asphalt impregnated board;] [cement-asbestos board;] [__________] manufactured by [__________.]]

Reglet Strip Devices: [____________________________.]

Cant: [____________________________.]

PART 3 EXECUTION

INSPECTION

Verify items which penetrate surfaces to receive waterproofing are rigidly installed.

Verify surfaces are free of cracks, depressions, waves, or projections which may be detrimental to successful installation.

Do not apply waterproofing to damp, frozen, dirty, dusty, or deck surfaces unacceptable to [manufacturer.] [applicator.]

Beginning of installation means acceptance of [existing surfaces.] [substrate.] [__________.]

PREPARATION

Protect adjacent surfaces not designated to receive waterproofing.

Seal cracks and joints with recommended material and sealant. Use proper depth-width ratio [as recommended by sealant manufacturer.] [in accordance with Section 07900.]

Clean surfaces of foreign matter detrimental to installation of membrane. [Vacuum substrate clean.]

Apply surface conditioner at a rate [of [_____] ([_____]).] [recommended by manufacturer.]

INSTALLATION

Install membrane waterproofing in accordance with manufacturer's instructions.

Roll out membrane.	Minimize wrinkles and bubbles.

Apply adhesive [at a rate of [_____] ([_____]).] [in accordance with manufacturer's instructions.] Completely bond sheet to substrate, except those areas directly over or within [3] [_____] inches ([75] [_____] mm) of a

working crack or expansion joint.

Install [mechanical fasteners] [__________] [in accordance with [__________.]] [_________________________.]

Remove release paper layer. Roll out on deck surface with mechanical roller to encourage full contact bond.

Overlap edges and ends minimum [3] [_____] inches ([75] [_____] mm). [Apply uniform bead of sealant to joint edge.]

[Shingle joints on sloped substrate in direction of drainage.]

Seal to adjoining surfaces.

Continue membrane up vertical surfaces minimum [6] [_____] inches ([150] [_____] mm) unless otherwise noted.

Seal items penetrating membrane with counterflashing membrane material.

Install flashings.	Seal watertight to membrane.

Reinforce membrane with multiple thickness of membrane material over joints, whether joints are static or moving.

FIELD QUALITY CONTROL

Field [inspection and] testing will be performed under provisions of Section [01400.] [01410.]

On completion of installation of membrane, dam installation in preparation for flood testing.

Flood to minimum depth of [one] [_____] inch ([25] [_____] mm) with clean water. After 48 hours, check for leaks.

If leaking is found, patch using new waterproofing materials; repeat flood test. Repair damage to building.

When area is proved watertight, drain water and remove dam.

PROTECTION

Protect finished installation under provisions of Section [01500.] [01535.]

[Install protection board with [lapped] [butt] joints and retain in place for vertical surfaces.]

After installation, close off area to prevent unauthorized traffic.

END OF SECTION